Trowel mastic is a heavily bodied bituminous mastic that is used for filling joints, cracks and splits in roofing and building materials including roofing felt, asphalt, concrete, asbestos cement, metallic guttering and drainpipes.
Resistant to water penetration immediately after application and is ideally suited for maintenance and remedial work
A typical coverage rate for a 2mm thickness of material is 2m square per litre
Drying time depends on weather conditions and film thickness
Heavy applications will result in extended drying times